The construction goes with P and set its width to M.
The correct option is (A).
A perpendicular bisector of a line segment is a line segment perpendicular to and passing through the midpoint of figure.
Now, a line perpendicular to AB and passing through an external point M.
first step :Put the compass needle on M and, keep the compass width the same then draw two arcs that intersect AB.
Second step: After drawing arcs, from the intersecting points named P and Q.
Now, keeping the width of compass same as before and to the opposite side of M draw an arc named it as M'
Third step: Using straightedge draw line passes through M.
The lines which passes through M will be perpendicular to AB.
The above discussed are steps to draw perpendicular bisector of AB.
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